Machine for swaging wire



(Nd Model.) 3 SheetsSheet 1.

E. W. VAUGHAN. MACHINE FOR SWAGING WIRE.

N0. 542,213. Patented July 2, 1895.

( 3 Sheets-Sheet .2.

E. w. VAUGHAN. MACHINE FOR SWAGING WIRE.

Patented July 2, 1895.

3 shets -sheet 3.

Patented July 2, 1895.

ift VIM E W VAUGHAN MACHINE FOR SWAGING WIRE.

(No Model.)

. UNrrno STATES FATENT @rrrcn.

EDWIN W. VAUGHAN, OF- WORCESTER, MASSACHUSETTS.

MACHINE FOR SWAGING WIRE.

SPECIFICATION forming part of Letters Patent No. 542,213, dated July 2, 1895.

I Application filed May 14, 18 94. Serial No. 511,269- (No model.)

To a whom it may concern.-

Be it known that I, EDWIN W. VAUGHAN,

a citizen of the United States, residing at Worcester, in the county of Worcester and State of .Massachusetts, have invented a new and useful Improvement in a Machine for Swaging Wire, of which the following is a specification, reference being had to the accompanying drawings, forming a part of the same, in which- Figure 1 represents a perspective view of a wire-swaging machine embodying my invention. Fig. 2 is an end view of the machine with the front plate removed in order to disclose the swaging-rolls. Fig. 3 is a central vertical sectional view of the machine on line 3 3, Fig. 1. Fig. 4 isa vertical sectional view on line 4 4, Fig. 3. Fig. 5 is a perspective view of one of the pivoted hangers and swaging-roll journaled therein. Fig. 6 is an end view of the shell or case with the operating parts of the mechanism removed therefrom. Fig. 7 is an end View of the revolving dieblock with the die-retaining plate removed in order to show the wire-swaging dies and beaters held in a diametrical slot in the revolvingdie-block. Fig. 8 represents a central longitudinal sectional view of the revolving dieblock on line 8 8, Fig. 7. Fig. 9 is a central longitudinal sectional view of the revolving die-block on line 9 9, Fig. 7. Fig. 10 rep-, resents the circular plate held within the inclosing-shell of the machine and provided with a series of holes to receive the bushings Which form the bearings for the swaging-rolls, and Fig. 11 represents a sectional view of the hanger on line'l 1, Fig. 5.

Similar letters refer to s1milar parts in the different figures.

The object of my present invention is to provide a Wire-swaging machine adapted to either swage a piece ofwire at its end,as in the operation of pointing the wirein the manufacture of needles, or to reduce its size, as

- in the manufacture of the spokes of bicycleimparted to the shaft B, and the inner end of the shaft B is enlarged, forming the cylindrical die-block B which is provided with a diametrical slot B in its end to receive the dies 0 O. The dies 0 C are recessed in their opposing faces, so that when they are brought together an opening C will be formed corresponding to the desired shape of the wire when swaged. Outside the dies 0 O, and within the slot B are placed the hardenedsteel blocks 0 O termed boaters, the dies 0 O and boaters O O filling the slot B but lying loosely therein, so as to be capable of a radial movement Within the slot, and held in place by the die-retaining plate D, which is attached to the die-block by bolts D D.

The end of the die-block is provided with a concentric shoulder 13, and the die-retaining plate D is provided with a concentric shoulder D fitting the the shoulder 13, in order to hold the dieretaining plate concentrically with the die-block, and the die-retaining plate is also recessed in the center to receive a hardened-steel plate D to provide a hardened surface to bear against the sides of the dies 0 O. The sides of the boaters O C are also provided with shoulders 0 with the diametrical distance between the shoulders C 0 less than the diameter of the concentric shoulder B in order to allow the heaters to move radially outward until their shoulders O? are brought in contact with the concentric shoulder D on the die-retaining plate, thereby limiting the outward movement of the heaters. The die-retaining plate D is provided with a central hole D slightly flaring at its outer end and having its axis coincident with the axis of the revolving shaft B, and the shaft .13 is provided with a central hole B in order to allow a piece of wire to pass through the the retaining plate D, between the dies G C and through the hole B in the shaft B.

The hole B is made larger than the wire to be inserted, and its diameter is contracted immediately behind the dies 0 O by a hardenedsteel bushing 13, having a central hole B slightly larger than the Wire and serving to hold the wire concentrically with the revolving shaft B.

The shell A is provided with the internallyprojecting lugs E, having screw-threaded boltholes E, and against the face of the lugs E, I place the circular plate F, shown in Fig. 10 and in sectional view in Fig. 3, and in front of the plate F is a plate F, separated from the plate F by the sleeves F shown in sectional view in Fig. 11. y

The plates F and F are provided with boltholes Ficorrespondin g with the screw-threaded holes E in the lugs E, and the plates F and F are held in place by the bolts P, which pass through the holes F in the plates F and F and through the sleeves F and are screwed into the holes E in the lugs E.

Journaled on the sleeves F which are arranged concentrically around the axis of the shaft B, are the hangers G, made in two halves and united by dowel-pins G. The hangers G are provided with bushings G G ,in which are journaled the spindles G carrying the rolls G The bushings G G project beyond the hangers, as at G G the ends G entering holes F in the plates F and F.

The holes F are slightly elongated in order to permit a movement of the bushings within the holes and allow a slight angular move ment of the hangers G around the axes of the sleeves F The spindles G are extended rearwardly in order to receive gears H, which engage a gear H on the driving-shaft B, causing the rolls G to berotated by the rotation of the shaft B, with their peripheries traveling in the same direction as the periphery of the die-hlock B Between the edge of the plate F and a shoulder 1, formed in the shell A and flush with the surface of the plate F, is placed a cam-ringl, provided on its inner side with the eccentric cam-surfaces 1 which bear against the outer surface of the hangers G, so that by the depression of the handle 1 the cam-ring I will be rocked and the hangers G moved in toward the die-block B while if the the camring be rocked by the elevation of the handle 1 the cam surfaces 1 will allow the hangers G to move out and carry the rolls G away from the die-hlock B The operation of the machine isvas follows: The shaft B is rapidly rotated through the belt-pulley B, causing the heaters C C and dies 0 C to be moved radially outward in the diametrical slot 13 0f the die-block by means of their centrifugal force until the shoulders C on the beaters 0 come in contact with the concentric shoulder D on the die-retaining plate D. The centrifugal motion of the beaters C C and dies 0 0 causes the opening 0' to be enlarged by the separation of the dies, so as to allow the wire to be swaged to be inserted between the dies through the hole I) in the die-retaining plate D. The centrifugal movement of the heaters (3 C in the dieblock B will'carry their faces C outside the periphery of the revolving die-block B so that if the handle 1 be depressed to rock the cam-ring I and crowd the hangers G inward the face 0 0i the heaters will be successively brought into contact with the periphery of the rolls G causing the heaters O C and dies 0 C to be driven in toward the wire inserted between the dies. As the heaters C C pass the spaces between the rolls G the centrifugal movement of the dies and heaters will again take place, separating the dies 0 O, which are again forced together by the contact of the next roll, causing a blow to he struck upon the wire as the heaters pass the rolls G upon opposite sides of the die-block B When it is desired to release the wire from the swaging action of the dies, the handle I is raised, rocking, the cam-ring l and allowing the hangers G to move radially outward, carrying the rolls G out of the path of the heaters 0 0. The outward radial movement of the hangers G is efiected, as soon as the hangers are released by the cam-ring I, by the crowding action of the gear 11' on the driving-shaft B against the gears H on the roll-spindles G Whenthe heaters C O are brought into contact with the swaging-rolls G the periphery of the rolls travel in the same direction and at the same speed as the surface of the heater in contact with the rolls, so that the contact between the face of the beater and the periphery of the roll becomes a rolling contact instead of a sliding contact, and as the rolls G are rotated positively by the rotation of the shaft B through the intermediate gearing H and H, the portion of the periphery of the rolls coming in contact with the faces of the heaters can always be predetermined. For example, if the gears H contain the same number of teeth as the drivinggear H, then the face of the beater will be brought into contact with the same portion of the periphery of the roll at each revolution and upon diametrically-opposite sides of the roll; but if the gears H be provided with one tooth more than the driving-gear 11, then the portion of the periphery of the roll coming in contact with the faces of the heaters will be continually varied, the faces of the heaters being brought into contact with a new portion of the periphery of therolls at each revolution of the die'block B The positive rotation of the rolls is an advantage, not only because it secures a rolling contact between the rolls and the faces of the heaters, but enables me to determine what portion ofthe roll shall be brought into contact with the heaters.

The employment of the rocking cam-ring, provided with a handle adapting it to be controlled by the operator, not only allows the rolls G to be brought into engagement with the heaters O 'or thrown out of their paths, but it also allows the action of the blow to be varied by varying the amount of compressionproducedbythedies. Forexarnple, the cam-ring can be so set that the contact of the rolls G will produce but a slight radial motion of the swaging-dies, or the camring can be adjusted so as to cause the swaging-dies to be moved toward the center of the die-block until the dies-are brought into contact.

I do not claim, broadly, the employment of a ring provided with cam surfaces and capable of an axial movement by which the compressor-rolls are carried radially toward the die block; neither do I claim, broadly, journaling the compressor-rolls in a series of hangers which are pivoted or hinged so as to be capable of a swinging motion. I journal the com pressing-rolls G in hangers which are pivoted to a fixed framework, and I hang them in such a position relatively to the dieblock that a line connecting the axis of the roll and the axis of the hanger shall form an angle with a radial line extending from the axis of the die-block through the axis of the roll held in the hanger; and I provide the hanger with a bearing-surface in contact with the cam-surface of the ring at or-near the free end of the hanger, so the axial movement of the ring will cause its cam-surfaces to act upon the pivoted hangers to rock them around their axes. The surface of the hanger which bears against the cam-surface of the ring is opposite the axis of the roll, causing the force of the blow, which is imparted by the beater when it strikes the roll, to be received directly by the cam-ring and its sup? porting framework instead of by the pivotal connection of the hanger with the fixed framework.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a machine for swaging wire, the combination with a revolving die-block, dies and beaters carried by said die-block and capable of a radial motion thereon, a series of hangers pivoted at one end concentrically around said die-block, rolls journaled in the free ends of said hangers, said hangers being hung at an angle with radial lines passing through the axes of said rolls and means applied to the free ends of said hangers to rock the same and carry said rolls toward said die-block, substantially as described.

2. In a machine for swaging wire, the combination with a revolving die-block, dies and beaterscarried by said die-block and capable of a radial movement therein, of a series of hangers pivoted at one end concentrically around said die-block and at an angle with radial lines passing through said hangers, rolls carried by said hangers, a ring inclosing said hangers and provided with cam surfaces arranged to bear against the free ends of said hangers andradially opposite the axes of said rolls, substantially as described.

3. In a machine for swaging wire, the combination with a fixed frame-work of a revolving die-block carrying a pair of dies and a pair of boaters capable of a radial movement in said block, as described, a series of hangers pivoted to said frame-work and concen- .beaters resting against said dies and extending to the periphery of said block, said dies and said beaters being capable of a radial motion in said slot, of a series of rolls carried upon rotating spindles, gears attached to said spindles and a driving gear engaging the gears on said spindles, whereby said rolls are positively rotated with their peripheries moving in the same direction as the movement of said beaters, substantially as described.

5. In a machine for swaging wire, the combination of a revolving shaft, a die block carried by said shaft, dies carried in said die block, boaters resting against said dies, hang- -ers pivoted around said die block, spindles said shaft, dies and boaters carried by said die block, rolls arranged concentrically around said die block, said rolls havinga positive rotary motion through connected gearing, whereby the periphery of said rolls is moved in the same direction as said boaters, substantially as described.

7. In a machine for swaging wire, the combination of'a shell A, plates F and F, bolts F passing through said plates and held by said shell, die-block 13, dies (3,0 and beaters (J 0 carried in said die-block, hangers G pivoted on said bolts F concentrically around said die-block, rolls G journaled in said pivoted hangers and a ring I having cam sur faces 1 bearing against the free ends of said hangers, substantially as described.

8. In a machine for swaging wire, the'combination-of a revolving hollow shaft Bearrying a die block B provided with a diametrical slot B dies 0, 0 held in said slot, a die retaining plate D attached to said die-block and provided with acentral recess opposite saiddies and a hardened steel plate D held in said recess and bearing against said dies, substantially as described.

IIO

9. In a machine for swaging wire, the combination of a shell A, plates F and F, sleeves F by which said plates are separated, bolts F passing through said sleeves into said 5 shell, hangers G pivoted on said sleeves,

spindles G3 journaled in said hangers, rolls G attached to said spindles, die-block B dies 0, G,beaters 0 ,0 held in said die-block and a ring inclosing said hangers and arxo ranged to bear against the free ends of said hangers, by which said hangers are held from rocking on their axes as said heaters are brought into contact with said rolls, substantially as described.

Dated this 9th day of May, 1894.

EDWIN W. VAUGHAN. Witnesses:

RUFUS B. FOWLER, HENRY W. FOWLER. 

